Feed device for saw and like machines.



H. i. HICK. FEED DEVIGAE FOR SAW AND LIKE MACHINES. l ATPLIUATIOH FILEDAUG. 21, 190B'. y 940,01 6, Patented Nov. 16. 1909.

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H. J. HICK. i FEED DEVICE POB. SAW AND LIKE MGHINES'.

APPLIUATION FILED AUG. 21, 190B.

Patented Nov. 16, 1909.

2 SHEETS-SHEET 2.

HARRY J. HICK, 0F ALLIANCE, OHIO.

FEED DEVICE FOR SAW AND LIKE MACHINES.

Specification of Letters Patent.

Patented Nov. 16, 1909.

Application filed August 21, 1908. Serial No. 449,616.

To all whom fit may concern:

Be it known that I, HARRY J. HICK, a citizen of the United States,resident of A1- liance, county of Stark, and State of-Ohio, haveinvented a new and useful Improvement in Feed Devices for Saw and LikeMachines, of which the following is a specification, the principle ofthe invention being herein explained and the best mode in which I havecontemplated applying that principle, so as to distinguish it from otherinventions.

My present invention, relating as indicated to feed mechanism, has asits object the provision of a device of this general descriptionparticularly adapted for use in connection with saws and other like woodor metal working machines wherein it is desirable to alternately advanceand retract the stock being operated upon. Thus in the case of sawingstrips from a larger stick of timber, or board, as by a rip saw, thestick requires to beadvanced past the saw, until the strip has beensevered therefrom, andv then be returned again for a repetition of theoperation until the entire stick has been used up.

The object of the present invention is the provision of a device of thissort wherein such advance and retraction of the stock may beautomatically had.

To the accomplishment of the foregoing and related ends, said invention,then, consists of the means hereinafter fully described and particularlyset forth in the claims. y

The annexed drawings and the following description set forth in detailcertain mechanism embodying the invention, such disclosed meansconstituting, however, but one of various mechanical forms in which theprinciple of the inventionmay be used.

In said annexed drawings: Figure l is a perspective view of an approvedform of my invention as applied to a circular rip-saw; Fig. 2 is a frontelevation of the same; Fig. 3 is an end elevation thereof; Fig. 4 abroken section on the line 4.-4, Fig. 2; and Fig. 5 a diagrammatic planview of the arrangement of my feed device on the saw table.

It will be understood that in the above drawings and the followingdescription pertaining thereto, the circular saw is illustrative merely,for, as will be obvious,` in

, place thereof a band-saw or in fact any other in which the stock isdesigned to move, and

by its adjustability adapted to variously gage the width of the strips bbeing cut 0H from the piece of timber B that constitutes the stock inthe present instance. Laterally of vthe table A', thus seen to form thestocksupporting means, is provided a vertically adjustable support A2upon which is pivotally mounted about an axis o parallel with the pathof movement of the stock, a frame C, the forward, free, end of whichextends over such path. Specifically the frame C comprises two arms c c2extending over the pat-h of the stock, in each of which arms vis mountedabout a common axis transverse to such path two shafts, C C2, one withinthe other, said arms being provided with suitable bearings c3 c3, c4 c,for sustaining such shafts, as shown, see Fig. 4.

The disposition of arms c the one lies in the rear, the other to thefrontof the saw, A, Figs. l and 2. The rear ends of corresponding shaftsof each pair are connected by Sprocket gearing c5 c, and the c2 is suchthat l shafts of one pair are respectlvely connected with a suitablecountershaft C3 by belts c7 08 in such fashion that the inner shaft willbe driven in a reverse direction to that in which the outer shaft isdriven. Upon the outer ends of each pair of shafts C C2 are respectivelymounted feed rolls C* C5 disposedso as to lie one on either side of theline of the saw. The inner roll C'it of each pair is of y slightlylarger diameter than the outer roll so that when the stick is being fedforward it, alone, will contact therewith, the outer roll being heldentirely out of such Contact; and the foremost of said two larger rollsC4, having regard to the direction of feed, is furthermore provided withthe usual spur teeth 09 for guiding the saw, while the rearmost has asplitter 01 for operating in the kerf. Y

From the foregoing construction it will be obvious that a board orsimilar piece B of timber from which successive strips are to be severedwill be taken up by the foredifference in radii between the inner andvertic cease, of course, to advance and when the strip has been fe'dentirely past-such second advancing roll the frame will be allowed toldrop through a distance equal to the slight outer rolls. The latter nowcontact with the stock, which will be retracted, owing to the oppositedirection of rotation of such roll. ln the first instance the rearmostretracting roll alone thus contacts with the stock, but the foremost onealso picks it up and returns it to its initial or starting place.

The rolls C4 C5 are preferably not strictly parallel with the line ofvthe saw, but as shown in Fig. 5, are turned in a triie toward theadjustable guide a. serves the double purpose of keeping the fedmaterial crowded toward the guide pending its advance, and fordisplacing the material away from the saw pending its return. Tofacilitate the movement vof the material across the supporting table A,rolls a2, disposed in the usual way, are provided, such rolls beingdivided, however, on the line of the saw, since they may at times haveto rotate in opposite directions. v

It has not been deemed necessary to illustrate and describe theadaptation of my improved stock feeding device to more than one type ofmachine, o'r saw, since it is believed the arrangement herein disclosedwill readily suggest how the device may be employed with band saws, sawsoperating horizontall or atan inclined angle instead of y, and, indeedwith machines', of other character than saws,l altogether. The operativeadvantages of such device, likewise do not require to be pointed out,the simplicity in operation and saving-in time and labor being obvious.

Other :modes of applying the rinciple of my invention may be employedpthe one explained, change being made as regardsv the mechanism hereindisclosed,v

provided the means stated by any one of the following claims or theequivalent of such stated means be employed.

I vtherefore particularly point out and distinctly claim as myinventlonz- 1. In mechanism of the class described,

' the combination with stock-supporting means, of feed members mountedso as vto be conjointly movable toward and from said supporting means,said members moving in opposite irections to advance` and retract thestock, respectively, when' in contact therewith, one such member beinglocated nearer said supporting means than the' This arrangement'Vinstead 'of other, whereby the latter is retained out of contact withthe stock when the former is in such contact.

2. In feed mechanism for saws and the like, the combination withstock-supporting means, of feed members mounted so as to be conjointlymovable toward and from said supporting means, said members beinrespectively located on opposite sides o the plane of the saw and movingin opposite directions to advance and retract the stock, when in contacttherewith, one such member being mounted nearer said supporting meansthan the other, whereby the latter is retained out of contact with thestock when-the former is in such contact.

3. In feed mechanism for saws and the like, the combination withstock-supporting means, two similar pairs of feed members -mounted so asto be conjointly movable toward and from said lsupporting means, onepair in front and the other to the rear of the saw, the members of eachpair movingin opposite directions to advance and retract the stock,respectively, when in contact therewith, the set of members foradvancing the stock being mounted nearer said supporting means than theother set, whereby the latter set. is retained out of contact with thestock? when the former is in such contact.

4. In mechanism.A of the class described, the combination ofstock-'supporting means, a frame movable toward and from the same,

andl feed. members borne by said frame andv moving. in oppositedirections to advance and retract the stock, respectively, when incontact therewith, one such feed member being located nearer saidsupporting means than the other, whereby the latter is retained outmeans than the other member, whereby the latter is retained out ofcontact with the stock when the former is in such contact.

6. In feed mechanism for saws and the 1ike, the combination ofstock-supporting means, a'frame movable toward and from the same, andtwo similarV pairs of feed members borne by said frame, one pair infront and the other to the rear of the saw, corresponding members of thetwo airs lying on the sameA side of the plane o the saw and the memberson opposite sides lof such` saw vmoving opposite directlons to advanceand retract the stock, respectively,

when in contact therewith, the set of meml of contact with the stockwhen the former bers for advancing the stock being mounted nearer saidsupporting means than the other, whereby the latter set is retained outof contact with the stock when the .former is in such contact.

7. In mechanism ot' the class described, the combination ofstock-supporting means, a frame movable toward and from the same,

and feed rolls borne by said frame, and rotating in opposite directionsto advance and retract the stock, respectively, when in.contacttherewith, one roll being located nearer said supporting means than theother, whereby the latter is retained out of Contact with the stock whenthe former is in such contact. A

8. In mechanism of the class described, the combination ofstock-supporting means, a frame oscillatory about an axis parallel withthe path of movement of the stock, a pair of feed rolls mounted in saidframe over such path, and -rotatable about axes transverse thereto, andmeans for rotatinpr said rolls in opposite directions, one roll bef inglocated nearer said supporting means than the other, whereby the latteryis retained out of contact with the stock when the former is in suchcontact.-y

9. In mechanism of the. class described, the combination ofstock-supporting means, a guide` member, a frame oscillatory about anaxis parallel with the path of movement of the stock, a pair of rollsmounted in said frame over such path and rotatable about axes transversethereto, and means for rotating said rolls in opposite directions, the yroll nearer said guide member being also located nearer said supportinmeans than the other, whereby the latter 1s retained out is in suchcontact.

l0. In mechanism of the class described, the combination ofstock-supporting means,`

a frame oscillatory about an axis parallel with the path of movemnt ofthe stock, two

is in such contact.

l1. In feed mechanism for a saw, the combination of a stock-supportingtable', a guide thereon, a Fframe oscillatory about an axis parallelwith the path of movementof the stock, two similar pairs of feed rollsmounted in said frame over such path, one pair on each side of the saw,each pair being rotatable about a common axis transverse to such path,and means for rotating the rolls of each pair located nearest said guidein a direction toadvance the stock and the remaining rollsin theopposite directionito retract such stock, the vfirst-named `rolls beingof larger diameter than the lastnamed, whereby the latter are retainedout of contact with the stock until it has been fed past the former.

Signed by me, this 14 day of August, 1908. i

HARRY J. Hicx.

